How to render species comparable taxonomic units through deep time

Generally, the species is considered to be the only naturally occurring taxon. However, species recognized and defined using different species delimitation criteria cannot readily be compared, impacting studies of biodiversity through Deep Time. This comparability issue is particularly marked when c...

ver descrição completa

Detalhes bibliográficos
Autores: Tschopp, Emanuel|||0000-0002-5245-6910, Napoli, James G., Wencker, Lukardis|||0000-0002-5293-3668, Delfino, Massimo|||0000-0001-7836-7265, Upchurch, Paul
Formato: artículo
Fecha de publicación:2022
País:España
Recursos:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:250223
Acesso em linha:https://ddd.uab.cat/record/250223
https://dx.doi.org/urn:doi:10.1093/sysbio/syab078
Access Level:acceso abierto
Palavra-chave:Intraspecific variation
Lacertidae
Morphological disparity
Osteology
Species delimitation
Taxonomic bias
id ES_8bdb3a68796d8ddcfb7ef845ec2f8646
oai_identifier_str oai:ddd.uab.cat:250223
network_acronym_str ES
network_name_str España
repository_id_str
spelling How to render species comparable taxonomic units through deep timea case study on intraspecific osteological variability in extant and extinct lacertid lizardsTschopp, Emanuel|||0000-0002-5245-6910Napoli, James G.Wencker, Lukardis|||0000-0002-5293-3668Delfino, Massimo|||0000-0001-7836-7265Upchurch, PaulIntraspecific variationLacertidaeMorphological disparityOsteologySpecies delimitationTaxonomic biasGenerally, the species is considered to be the only naturally occurring taxon. However, species recognized and defined using different species delimitation criteria cannot readily be compared, impacting studies of biodiversity through Deep Time. This comparability issue is particularly marked when comparing extant with extinct species because the only available data for species delimitation in fossils are derived from their preserved morphology, which is generally restricted to osteology in vertebrates. Here, we quantify intraspecific, intrageneric, and intergeneric osteological variability in extant species of lacertid lizards using pairwise dissimilarity scores based on a data set of 253 discrete osteological characters for 99 specimens referred to 24 species. Variability is always significantly lower intraspecifically than between individuals belonging to distinct species of a single genus, which is in turn significantly lower than intergeneric variability. Average values of intraspecific variability and associated standard deviations are consistent (with few exceptions), with an overall average within a species of 0.208 changes per character scored. Application of the same methods to six extinct lacertid species (represented by 40 fossil specimens) revealed that intraspecific osteological variability is inconsistent, which can at least in part be attributed to different researchers having unequal expectations of the skeletal dissimilarity within species units. Such a divergent interpretation of intraspecific and interspecific variability among extant and extinct species reinforces the incomparability of the species unit. Lacertidae is an example where extant species recognized and defined based on a number of delimitation criteria show comparable and consistent intraspecific osteological variability. Here, as well as in equivalent cases, application of those skeletal dissimilarity values to paleontological species delimitation potentially provides a way to ameliorate inconsistencies created by the use of morphology to define species. 22022-01-0120222022-01-01Articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/250223https://dx.doi.org/urn:doi:10.1093/sysbio/syab078reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengEuropean Commission https://doi.org/10.13039/501100000780 609402open accesshttp://purl.org/coar/access_right/c_abf2Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.https://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2502232026-06-06T12:50:31Z
dc.title.none.fl_str_mv How to render species comparable taxonomic units through deep time
a case study on intraspecific osteological variability in extant and extinct lacertid lizards
title How to render species comparable taxonomic units through deep time
spellingShingle How to render species comparable taxonomic units through deep time
Tschopp, Emanuel|||0000-0002-5245-6910
Intraspecific variation
Lacertidae
Morphological disparity
Osteology
Species delimitation
Taxonomic bias
title_short How to render species comparable taxonomic units through deep time
title_full How to render species comparable taxonomic units through deep time
title_fullStr How to render species comparable taxonomic units through deep time
title_full_unstemmed How to render species comparable taxonomic units through deep time
title_sort How to render species comparable taxonomic units through deep time
dc.creator.none.fl_str_mv Tschopp, Emanuel|||0000-0002-5245-6910
Napoli, James G.
Wencker, Lukardis|||0000-0002-5293-3668
Delfino, Massimo|||0000-0001-7836-7265
Upchurch, Paul
author Tschopp, Emanuel|||0000-0002-5245-6910
author_facet Tschopp, Emanuel|||0000-0002-5245-6910
Napoli, James G.
Wencker, Lukardis|||0000-0002-5293-3668
Delfino, Massimo|||0000-0001-7836-7265
Upchurch, Paul
author_role author
author2 Napoli, James G.
Wencker, Lukardis|||0000-0002-5293-3668
Delfino, Massimo|||0000-0001-7836-7265
Upchurch, Paul
author2_role author
author
author
author
dc.subject.none.fl_str_mv Intraspecific variation
Lacertidae
Morphological disparity
Osteology
Species delimitation
Taxonomic bias
topic Intraspecific variation
Lacertidae
Morphological disparity
Osteology
Species delimitation
Taxonomic bias
description Generally, the species is considered to be the only naturally occurring taxon. However, species recognized and defined using different species delimitation criteria cannot readily be compared, impacting studies of biodiversity through Deep Time. This comparability issue is particularly marked when comparing extant with extinct species because the only available data for species delimitation in fossils are derived from their preserved morphology, which is generally restricted to osteology in vertebrates. Here, we quantify intraspecific, intrageneric, and intergeneric osteological variability in extant species of lacertid lizards using pairwise dissimilarity scores based on a data set of 253 discrete osteological characters for 99 specimens referred to 24 species. Variability is always significantly lower intraspecifically than between individuals belonging to distinct species of a single genus, which is in turn significantly lower than intergeneric variability. Average values of intraspecific variability and associated standard deviations are consistent (with few exceptions), with an overall average within a species of 0.208 changes per character scored. Application of the same methods to six extinct lacertid species (represented by 40 fossil specimens) revealed that intraspecific osteological variability is inconsistent, which can at least in part be attributed to different researchers having unequal expectations of the skeletal dissimilarity within species units. Such a divergent interpretation of intraspecific and interspecific variability among extant and extinct species reinforces the incomparability of the species unit. Lacertidae is an example where extant species recognized and defined based on a number of delimitation criteria show comparable and consistent intraspecific osteological variability. Here, as well as in equivalent cases, application of those skeletal dissimilarity values to paleontological species delimitation potentially provides a way to ameliorate inconsistencies created by the use of morphology to define species.
publishDate 2022
dc.date.none.fl_str_mv 2
2022-01-01
2022
2022-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/250223
https://dx.doi.org/urn:doi:10.1093/sysbio/syab078
url https://ddd.uab.cat/record/250223
https://dx.doi.org/urn:doi:10.1093/sysbio/syab078
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv European Commission https://doi.org/10.13039/501100000780 609402
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869412856499273728
score 15,300719

Registos relacionados